Disposable Coffee Maker

Abstract

A disposable coffee pot includes a lower section containing water which is heated by an external heat source. Pre-packaged ground coffee beans are located above and isolated from the water until the temperature of the water is elevated. When the bottom of the coffee pot is heated by a heat source, the water is allowed to boil increasing the pressure in the lower section causing that boiling water to rise out of the lower section. The heat applied to the coffee pot also ruptures a partition wall separating the water from the coffee beans, to allow the hot water to contact the beans and form a coffee extract. The coffee is extracted and then accumulated in an upper section through a pipe so that it is possible to collect and drink the coffee from the upper section.

1 . A disposable device for forming a hot liquid comprising a container wherein
 the inside of the container is separated by lower and upper barriers into at least a lower section and an upper section connected to each other through a pipe or water passage in the lower barrier, with an extractable food stuff being positioned above a water container,   so that water located in the water container in the lower section, when heated to boiling by an external heat source applied to the bottom of the lower section, creating an elevated pressure in the lower section, will move through the pipe or water passage and the extractable food stuff to the upper section,   the water in the lower section being excluded from entering the extractable food stuff by a partition wall enclosing the water, the partition wall being opened by heat applied to the lower section, allowing the water released by opening the partition to become heated and to move through the pipe or water passage and the extractable food stuff to the upper section.   
   
   
       2 . The disposable device of  claim 1  wherein the partition wall is a film or a sheet of a meltable plastic or a plastic, metal, ceramic, glass or rubber material with a plug made of a meltable material within the partition wall. 
   
   
       3 . The disposable device of  claim 1  wherein the bottom of the container is formed of a heat-resistant metal or ceramic material. 
   
   
       4 . The disposable device of  claim 1  wherein the pipe or the water passage in the lower barrier extends into the lower section and has a lower end adjacent the bottom of the lower section so that elevated pressure in the lower section will move substantially all of the water in the lower section to the upper section. 
   
   
       5 . The disposable device of  claim 1  wherein a second pipe or water passage extends above the stored extractable foodstuff so that hot water passing through the extractable foodstuff is carried outward through the second tube or water passage and is prevented from returning to the lower section. 
   
   
       6 . The disposable device of  claim 1  wherein the extractable food stuff is ground coffee beans, tea, green tea, herbs, herbal medicine or a soup mix. 
   
   
       7 . The disposable device of  claim 1  wherein a filter is placed in the vicinity of an inlet to the second pipe or water passage so that the extractable food stuff is retained below the second pipe or water passage while soluble material extracted from extractable food stuff passes through the filter and the second pipe or water passage. 
   
   
       8 . A disposable prepackaged coffee maker comprising ground coffee beans and water stored in a heatable container with the ground coffee beans isolated from and above the water until the water is released from an enclosing barrier by exposure to an externally applied selected elevated temperature, said prepackaged coffee maker including means for dispensing brewed coffee there from after the ground coffee beans therein have been extracted by said water following application of heat to said container. 
   
   
       9 . The disposable prepackaged coffee maker of  claim 8  wherein the ground coffee beans located above the water are separated from the water by a barrier surrounding the water openable when the heated container is exposed to the selected elevated temperature. 
   
   
       10 . The disposable prepackaged coffee maker of  claim 9  wherein internal pressure created within the heatable container resulting from heating the water to a selected elevated temperature causes the heated water to flow upward through the ground coffee beans and into an upper space within the heatable container, said upper space including the means for dispensing brewed coffee there from. 
   
   
       11 . The disposable prepackaged coffee maker of  claim 9  wherein the barrier is a container formed of a thermoplastic material surrounding the water, said thermoplastic material melting at the selected elevated temperature to release the water to expose the ground coffee beans to heated water. 
   
   
       12 . The disposable prepackaged coffee maker of  claim 9  wherein the barrier surrounds the water, said barrier having a thermoplastic portion meltable at the selected elevated temperature to release the water and to expose the ground coffee beans to heated water released from the barrier.